Grouping the output of a SQL query and displaying it

Hi all,

I have a query with a resultset similar to this:

type | amount
1 | a
1 | b
1 | c
2 | a
2 | b
3 | a

I want the display to look like this:

1 | a
| b
| c
2 | a
| b
3 | a

This is similar to coldfusion and the cfoutput group attribute. Basically, I want anything with duplicates to be removed from the output (given that they are ordered correctly in the query). It is not only this query, it should apply to much larger queries with more columns.

Is there any type of tool to do this or do I have to write something that always checks the previous row's value and then displays whether or not it was the same as the current row?

I think you can do this with a loop while creating the table.
Assuming that you have got them in ordered form.
<table>
<%
int myval=-1;
while(rs.next())
{%>
<tr>
<%
if(myval==-1 or myval=rs.getString(1))
{
myval=rs.getint(1)
%>
<td><%=myval%></td>
<%
}else
{%>
<td></td>
<%}
//rest of the processing.
}
%>